Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 7, NWS Fort Worth, TX

April 11, 2011Hunt County, Kaufman County, Rockwall County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 11, 2011, 2:13 AM CDT for Hunt County, Kaufman County, Rockwall County, Texas. It was in force for 35 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 11, 2011, 2:13 AM CDT (07:13 UTC)
Expired: Apr 11, 2011, 2:48 AM CDT
In force: 35 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Hunt County, TX, Kaufman County, TX, Rockwall County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 113 km from the middle of the area, began a volume at 07:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 11, 2:30 AM CDT	TSTM WND DMG	1 S Quinlan, TX	WIDESPREAD WIND DAMAGE IN THE SOUTHERN PART OF THE COUNTY. NUMEROUS TREES...POWERLINES AND STRUCTURES DAMAGED.
Apr 11, 2:30 AM CDT	TSTM WND DMG	3 S Cash, TX	NUMEROUS ROOFS OFF OF HOUSES AND 2 HOUSES ALMOST DESTROYED. POSSIBLE TORNADO DAMAGE IN A DEFINED 1/2 MILE WIDE SWATH.
Apr 11, 2:34 AM CDT	TORNADO	5.5 N Quinlan, TX	AN NWS STORM SURVEY CONFIRMED AN EF1 TORNADO BEGAN IN THE TOWN OF CASH AND TRACKED SEVEN MILES TO THE NORTHEAST. A TOTAL OF 6 MOBILE HOMES, A MANUFACTURING PLANT, AND TWO METAL BUILDINGS SUSTAINED DAMAGE. ONE MOBILE HOME WAS DESTROYED. THE DAMAGE WAS NON-CONTI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 10, 7:02 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 11, 1:49 AM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 7.2 hours before the alert went out and 105 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 637 J/kg
Mixed-layer CIN: -268 J/kg
Mixed-layer LCL: 1994 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

753 
WFUS54 KFWD 110713
TORFWD
TXC231-257-397-110800-
/O.NEW.KFWD.TO.W.0007.110411T0713Z-110411T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
213 AM CDT MON APR 11 2011

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HUNT COUNTY IN NORTH CENTRAL TEXAS...
  NORTHERN KAUFMAN COUNTY IN NORTH CENTRAL TEXAS...
  ROCKWALL COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 300 AM CDT

* AT 212 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
A   DEVELOPING TORNADO 5 MILES SOUTH OF HEATH...MOVING EAST AT 45 
MPH. A TORNADO WARNING REMAINS IN EFFECT FOR THE NORTHERN HALF OF 
KAUFMAN COUNTY.

* THE TORNADO WILL BE NEAR...
  MCLENDON-CHISHOLM AND ROCKWALL AROUND 220 AM CDT...
  FATE AROUND 225 AM CDT...
  ROYSE CITY AROUND 230 AM CDT...
  QUINLAN AROUND 240 AM CDT...
  WEST TAWAKONI AROUND 250 AM CDT...

THIS WILL IMPACT I-30 BETWEEN MILE MARKERS 65 AND 84.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO AN INTERIOR BATHROOM...CLOSET...OR HALLWAY ON THE LOWEST
FLOOR OF YOUR BUILDING. COVER YOURSELF WITH BLANKETS...PILLOWS...OR A
MATTRESS FOR PROTECTION.

EVACUATE MOBILE HOMES FOR A STORM SHELTER OR PERMANENT BUILDING. IF
NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH AND COVER
YOUR HEAD.

&&

LAT...LON 3290 9597 3288 9597 3285 9595 3285 9609
      3275 9652 3294 9652 3299 9637 3299 9629
      3301 9629 3301 9594
TIME...MOT...LOC 0712Z 249DEG 40KT 3279 9648

$$


CAVANAUGH

2 follow-up statements

024 
WWUS54 KFWD 110734
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
234 AM CDT MON APR 11 2011

TXC257-397-110743-
/O.CAN.KFWD.TO.W.0007.000000T0000Z-110411T0800Z/
ROCKWALL TX-KAUFMAN TX-
234 AM CDT MON APR 11 2011

...THE TORNADO WARNING FOR NORTHWESTERN KAUFMAN AND ROCKWALL COUNTIES
IS CANCELLED...

THIS WILL IMPACT I-30 BETWEEN MILE MARKERS 65 AND 79.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
EASTERN TEXAS. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 600 AM
CDT MONDAY MORNING FOR NORTHEASTERN TEXAS.

IN ADDITION...STRAIGHT LINE WINDS OF UP TO 80 MPH CAN BE EXPECTED 
WITH THESE STORMS.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 500 AM CDT
MONDAY MORNING FOR NORTH CENTRAL TEXAS.

LAT...LON 3290 9597 3285 9595 3285 9609 3285 9612
      3285 9622 3301 9626 3301 9594
TIME...MOT...LOC 0733Z 249DEG 40KT 3287 9622

$$

TXC231-110800-
/O.CON.KFWD.TO.W.0007.000000T0000Z-110411T0800Z/
HUNT TX-
234 AM CDT MON APR 11 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 AM CDT FOR SOUTHERN
HUNT COUNTY...

AT 233 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 8 MILES SOUTHWEST OF
QUINLAN...MOVING EAST AT 45 MPH.

THE TORNADO WILL BE NEAR...
  QUINLAN AROUND 240 AM CDT...
  WEST TAWAKONI AROUND 250 AM CDT...

THIS WILL IMPACT I-30 BETWEEN MILE MARKERS 82 AND 84.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CDT MONDAY MORNING FOR
NORTHEASTERN TEXAS.

&&

LAT...LON 3290 9597 3285 9595 3285 9609 3285 9612
      3285 9622 3301 9626 3301 9594
TIME...MOT...LOC 0733Z 249DEG 40KT 3287 9622

$$

617 
WWUS54 KFWD 110748
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
248 AM CDT MON APR 11 2011

TXC231-110759-
/O.CAN.KFWD.TO.W.0007.000000T0000Z-110411T0800Z/
HUNT TX-
248 AM CDT MON APR 11 2011

...THE TORNADO WARNING FOR SOUTHERN HUNT COUNTY IS CANCELLED...

THIS WILL IMPACT I-30 BETWEEN MILE MARKERS 82 AND 84.

AT 249 AM CDT THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO
WARNING HAS EXITED THE AREA...THUS THE WARNING WAS CANCELLED.

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CDT MONDAY MORNING FOR
NORTHEASTERN TEXAS.

LAT...LON 3290 9597 3285 9595 3285 9609 3285 9612
      3285 9622 3301 9626 3301 9594
TIME...MOT...LOC 0749Z 249DEG 40KT 3293 9602

$$

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 10, 7:05 PM CDT	Special Weather Statement	FWD	Palo Pinto	25 min
Apr 10, 7:17 PM CDT	Special Weather Statement	FWD	Montague	28 min
Apr 10, 7:31 PM CDT	Severe Thunderstorm Warning	FWD	Jack, Palo Pinto, Parker	59 min
Apr 10, 7:42 PM CDT	Special Weather Statement	FWD	Cooke, Montague	33 min
Apr 10, 7:48 PM CDT	Severe Thunderstorm Warning	FWD	Eastland	57 min
Apr 10, 8:13 PM CDT	Special Weather Statement	FWD	Cooke	32 min
Apr 10, 8:18 PM CDT	Special Weather Statement	FWD	Wise	27 min
Apr 10, 8:32 PM CDT	Special Weather Statement	FWD	Wise	28 min
Apr 10, 8:49 PM CDT	Special Weather Statement	FWD	Eastland, Palo Pinto	26 min
Apr 10, 9:09 PM CDT	Special Weather Statement	FWD	Palo Pinto	36 min
Apr 10, 9:25 PM CDT	Severe Thunderstorm Warning	FWD	Erath, Hood, Palo Pinto, Parker	44 min
Apr 10, 9:32 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Eastland	46 min
Apr 10, 9:38 PM CDT	Special Weather Statement	FWD	Jack	37 min
Apr 10, 9:47 PM CDT	Tornado Warning	FWD	Parker	22 min
Apr 10, 9:56 PM CDT	Special Weather Statement	FWD	Montague	34 min
Apr 10, 9:59 PM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant	35 min
Apr 10, 10:09 PM CDT	Special Weather Statement	FWD	Erath	36 min
Apr 10, 10:16 PM CDT	Severe Thunderstorm Warning	FWD	Montague	59 min
Apr 10, 10:20 PM CDT	Severe Thunderstorm Warning	FWD	Erath	34 min
Apr 10, 10:45 PM CDT	Special Weather Statement	FWD	Grayson	30 min
Apr 10, 11:04 PM CDT	Special Weather Statement	FWD	Eastland	26 min
Apr 10, 11:17 PM CDT	Special Weather Statement	FWD	Denton, Parker, Wise	28 min
Apr 10, 11:22 PM CDT	Severe Thunderstorm Warning	FWD	Mills	68 min
Apr 10, 11:52 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Coryell, Hamilton, Lampasas, Mills	53 min
Apr 10, 11:53 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Denton, Tarrant	37 min
Apr 11, 12:05 AM CDT	Severe Thunderstorm Warning	FWD	Grayson	39 min
Apr 11, 12:23 AM CDT	Severe Thunderstorm Warning	FWD	Collin, Denton	52 min
Apr 11, 12:25 AM CDT	Tornado Warning	FWD	Hamilton	20 min
Apr 11, 12:28 AM CDT	Severe Thunderstorm Warning	FWD	Bosque, Coryell, Hamilton	62 min
Apr 11, 12:41 AM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant	64 min
Apr 11, 12:47 AM CDT	Severe Thunderstorm Warning	FWD	Fannin, Grayson	58 min
Apr 11, 12:49 AM CDT	Severe Thunderstorm Warning	FWD	Hood, Johnson, Somervell	41 min
Apr 11, 12:55 AM CDT	Severe Thunderstorm Warning	FWD	Hill	35 min
Apr 11, 1:15 AM CDT	Tornado Warning	FWD	Johnson	21 min
Apr 11, 1:23 AM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Johnson, Navarro	51 min
Apr 11, 1:34 AM CDT	Severe Thunderstorm Warning	FWD	Dallas	43 min
Apr 11, 1:35 AM CDT	Tornado Warning	FWD	Ellis	25 min
Apr 11, 1:53 AM CDT	Severe Thunderstorm Warning	FWD	Henderson, Kaufman	52 min
Apr 11, 2:01 AM CDT	Tornado Warning	FWD	Dallas, Kaufman	30 min
Apr 11, 2:19 AM CDT	Severe Thunderstorm Warning	FWD	Rains, Van Zandt	56 min
Apr 11, 2:38 AM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Hunt	52 min
Apr 11, 2:59 AM CDT	Special Weather Statement	FWD	Navarro	31 min
Apr 11, 3:27 AM CDT	Special Weather Statement	FWD	Henderson	33 min
Apr 11, 4:07 AM CDT	Special Weather Statement	FWD	Henderson	23 min
Apr 11, 4:14 AM CDT	Special Weather Statement	FWD	Falls	31 min
Apr 11, 5:05 AM CDT	Special Weather Statement	FWD	Milam	25 min

Nearby

Tornado Warnings in Texas, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.